게 쏘다

shoot; also pick up the bill

쏘다 is firing something off — a gun, a fast burst of rapping, a jet of something. It also means treating people, paying for everyone, and -게 supplies the size of the gesture: 통 크게 쏘다 (stand a lavish round), 한턱 크게 쏜 상진 (Sangjin, who treated everyone in style). -게 elsewhere gives the manner, as in 빠르게 쏘는 스타일의 래퍼.

Register: the treating sense is casual slang